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PTH08080WBH

更新时间： 2024-11-29 11:06:31
品牌 Logo 应用领域
德州仪器 - TI 开关控制器开关式稳压器开关式控制器光电二极管电源电路开关式稳压器或控制器
页数 文件大小 规格书
16页 685K
描述
2.25A 4.5V 至 18V 输入宽调节微型电源模块 | EUF | 5

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PTH08080WBH 数据手册

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PTH08080W  
www.ti.com  
SLTS235A–FEBRUARY 2005–REVISED MARCH 2005  
2.25-A, WIDE-INPUT ADJUSTABLE SWITCHING REGULATOR  
FEATURES  
•
•
•
Ambient Temperature Range: –40°C to 85°C  
•
•
•
Up to 2.25-A Output Current at 85°C  
Surface-Mount Package  
4.5-V to 18-V Input Voltage Range  
Safety Agency Approvals:  
UL/CUL 60950, EN60950 VDE (Pending)  
Wide-Output Voltage Adjust  
(0.9 V to 5.5 V)  
APPLICATIONS  
•
•
•
•
Efficiencies Up To 93%  
On/Off Inhibit  
•
Telecommunications, Instumentation,  
and General-Purpose Circuits  
Undervoltage Lockout (UVLO)  
Output Overcurrent Protection  
(Nonlatching, Auto-Reset)  
•
Overtemperature Protection  
DESCRIPTION  
The PTH08080W is a highly integrated, low-cost switching regulator module that delivers up to 2.25 A of output  
current. The PTH08080W sources output current at a much higher efficiency than a TO-220 linear regulator IC,  
thereby eliminating the need for a heat sink. Its small size (0.5 × 0.6 in) and flexible operation creates value for a  
variety of applications.  
The input voltage range of the PTH08080W is from 4.5 V to 18 V, allowing operation from either a 5-V or 12-V  
input bus. Using state-of-the-art switched-mode power-conversion technology, the PTH08080W can step down to  
voltages as low as 0.9 V from a 5-V input bus, with less than 1 W of power dissipation. The output voltage can  
be adjusted to any voltage over the range, 0.9 V to 5.5 V, using a single external resistor. Operating features  
include an undervoltage lockout (UVLO), on/off inhibit, overcurrent protection, and overtemperature protection.  
Target applications include telecommunications, test and measurement applications, and high-end consumer  
products. This product is available in both through-hole and surface-mount package options, including tape and  
reel.  
$
D1  
STANDARD APPLICATION  
Inhibit  
5
4
R
#
SET  
0.05 W, 1%  
(Required)  
PTH08080W  
(Top View )  
V
O
V
I
1
3
C
*
O
C *  
I
2
+
100 mF  
100 mF  
Electrolytic  
(Required)  
Electrolytic  
(Optional)  
GND  
GND  
* See The Capacitor Application Information  
# See the Specification Table for the R  
SET  
value.  
$ Diode is Required When V > 5.25 V and V > 16 V.  
I
O
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2005, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...16

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